Browsing Faculty of Natural and Agricultural Sciences by Title
Now showing items 2899-2918 of 4825
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Motivations for relationships as sources of meaning: Ghanaian and South African experiences
(Frontiers Media, 2020)Afrocentric paradigms reflect assumptions of the overarching importance of interconnectedness and social bonds in meaningful experiences. It is, however, not known if types of relatedness vary in importance as meaning ... -
Motor cortical and corticospinal function differ during an isometric squat compared with isometric knee extension
(Wiley, 2018)It has been suggested that task‐specific changes in neurophysiological function (neuroplasticity) should be assessed using testing modalities that replicate the characteristics of the intervention. The squat is a commonly ... -
Movement and survival of Busseola fusca (Lepidoptera: Noctuidae) larvae within maize plantings with different ratios of non-Bt and Bt seed
(Wiley, 2016)BACKGROUND Products of plant biotechnology, for example genetically modified Bt maize, provide useful tools for pest management. The benefits provided by insect-resistant plants are, however, threatened by the evolution ... -
Moving households to cleaner energy through air quality offsets
(IEEE, 2018)Highest levels of exposure to polluted air in South Africa occur in low-income settlements where households burn solid fuels. The Department of Environmental Affairs has recently developed a legally enforceable mechanism ... -
MP2, DFT and DFT–D study of the dimers of diazanaphthalenes: a comparative study of their structures, stabilisation and binding energies
(Taylor & Francis, 2014)Diazanaphthalenes (DAPs) are a broad class of N-heteroaromatic compounds with several technological and biological applications. Some of these applications are attributed to the ability of DAP molecules to form associated ... -
MSP binaries as astrophysical laboratories
(Cambridge Univ Press, 2018)Follow-up of unidentified Fermi sources has expanded the number of known galactic-field “black widow” and “redback” millisecond pulsar binaries from four to nearly 30. Several systems observed by Chandra, XMM-Newton, Suzaku, ... -
MtDNA population variation in Myalgic encephalomyelitis/Chronic fatigue syndrome in two populations: a study of mildly deleterious variants
(Nature, 2019)Myalgic Encephalomyelitis (ME), also known as Chronic Fatigue Syndrome (CFS) is a debilitating condition. There is growing interest in a possible etiologic or pathogenic role of mitochondrial dysfunction and mitochondrial ... -
mth Roots of H-selfadjoint matrices
(Elsevier, 2021)In this paper necessary and sufficient conditions are given for the existence of an H-selfadjoint mth root of a given H-selfadjoint matrix. A construction is given of such an Hselfadjoint mth root when it does exist -
Mult-criteria decision analysis
(ORSSA, 2019) -
Multi-band implications of external-IC flares
(Elsevier, 2015)Very fast variability on scales of minutes is regularly observed in Blazars. The assumption that these flares are emerging from the dominant emission zone of the very high energy (VHE) radiation within the jet challenges ... -
Multi-locus phylogeny and evolution of reproductive modes in the Pyxicephalidae, an African endemic clade of frogs
(Unisa Press/Taylor & Francis, 2011)The ranoid family Pyxicephalidae is an endemic group of African frogs, with the majority of its diversity concentrated in South Africa. Here we present the first molecular phylogeny that includes as many as nine of the ten ... -
Multi-media for flipped classrooms: engaged nutrition learning in a multi-media enhanced flipped classroom
(Unisa, 2015)This article focuses on the experiences of Health Science students changing from a traditional lecturer–centred, face–to–face teaching scenario to a multi–modal learning experience in a flipped classroom. Getting students ... -
Multi-messenger observations of a binary neutron star merger
(IOP Publishing, 2017)On 2017 August 17 a binary neutron star coalescence candidate (later designated GW170817) with merger time 12:41:04 UTC was observed through gravitational waves by the Advanced LIGO and Advanced Virgo detectors. The Fermi ... -
Multi-TeV emission from the Vela pulsar
(IOP Publishing, 2018)Pulsed emission from the Vela pulsar at energies above 3 TeV has recently been detected by the High Energy Stereoscopic System (H.E.S.S.) Collaboration. We present a model for the broadband spectrum of Vela from infrared ... -
Multi-wavelength modeling of globular clusters: the millisecond pulsar scenario
(IOP Publishing, 2013)The potentially large number of millisecond pulsars (MSPs) in globular cluster (GC) cores makes these parent objects ideal laboratories for studying the collective properties of an ensemble of MSPs. Such a population is ... -
Multi-wavelength observations of flaring blazars with ATOM and Fermi-LAT
(Sissa Medialab, 2017)The Automatic Telescope for Optical Monitoring is a 75cm optical telescope located at the H.E.S.S. site in Namibia. Since 2005, it monitors around 250 gamma-ray emitting AGN and has observed numerous blazar flares in several ... -
Multi-wavelength observations of H 2356-309
(EDP Sciences, 2010)Aims. The properties of the broad-band emission from the high-frequency peaked BL Lac H 2356–309 (z = 0.165) are investigated. Methods. Very high energy (VHE; E > 100 GeV) observations of H 2356–309 were performed with ... -
Multi-wavelength study of flaring activity in BL Lac object S5 0716+714 during the 2015 outburst
(American Astronomical Society, 2015)We present a detailed investigation of the flaring activity observed from a BL Lac object, S5 0716+714 , during its brightest ever optical state in the second half of 2015 January. Observed almost simultaneously in the ... -
Multi-wavelength variability signatures of relativistic shocks in blazar jets
(IOP Publishing, 2019)Mildly relativistic shocks that are embedded in colliding magnetohydrodynamic flows are prime sites for relativistic particle acceleration and the production of strongly variable, polarized multi-wavelength emission from ... -
Multiband optical-NIR variability of blazars on diverse time-scales
(Oxford University Press, 2015)To search for optical variability on awide range of time-scales,we have carried out photometric monitoring of two flat spectrum radio quasars, 3C 454.3 and 3C 279, plus one BL Lac, S5 0716+714, all of which have been ...